The density distribution that one will expect from this experiment is ONE LOW DENSITY AND ONE INTERMEDIATE DENSITY BANDS.
The 14N and the 15N media are refereed to as light and heavy medium respectively, they are composed of isotopes of nitrogen. When growing on the 15N medium, the E coli takes part of the nitrogen isotope and use it to make new biological molecules including DNA. The same thing happens when the E coli was put in the 14N media. Density gradient centrifugation is then used to measure the density of the DNA, thus, indirectly measuring the 15N and the 14N components of the DNA.
Answer:
As an embryo <u>develops</u>, identical cells give rise to specialized cells that <u>perform </u>different functions.
Explanation:
As an embryo develops, the cells divide, giving new ones. As the cells grow and continue to reproduce themselves, they differentiate, becoming specialized cells. These cells will be located in a particular part of the embryo and will perform a specific function. The shape, size, and organelles vary according to their role.
The answer is D. Telegraph, telephone, cordless phone , mobile
Weathering describes the breaking down or dissolving of rocks and minerals on the surface of the Earth.
